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7
DTR3
8
RI3/+5V/+12V
9
GND
Pin
Pin Name
1
RS485_ D3-
2
NC
3
RS485_D3+
4
NC
5
NC
6
NC
7
NC
8
NC/+5V/+12V
9
GND
Pin
Pin Name
1
RS422_TX3-
2
NC
3
RS422_TX3+
4
NC
5
RS422_RX3+
6
NC
7
RS422_RX3-
8
NC/+5V/+12V
Chapter 2 – Hardware Information
OUT
IN
GND
RS-485
Signal Type
I/O
I/O
PWR
GND
RS-422
Signal Type
OUT
OUT
IN
IN
PWR
±5V
+5V/+12V
Signal Level
±5V
±5V
+5V/+12V
Signal Level
±5V
±5V
+5V/+12V
33
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